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Area and Volume aptitude questions and answers - Page 1

1. A rectangular block 6 cm by 12 cm by 15 cm is cut up into an exact number of equal cubes. Find the least possible number of cubes.

A. 20

B. 30

C. 40

D. 50

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2. A right-angled triangle has a hypotenuse of 13 cm and one side of 12 cm. Its area is

A. 30

B. 39

C. 80

D. 78

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3. A circular park of 20-metre diameter has a circular path just inside the boundary of width 1 metre. The area of the path is

A. 15π

B. 17π

C. 19π

D. 25π

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4. The surface area of a cube is 150 sq cm. What is the length of its diagonal in cm ?

A. 5

B. 5√3 / 2

C. 5√3

D. 5√2

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5. If the circumference and the area of a circle are numerically equal, then what is the numerical value of the diameter ?

A. 1

B. 2

C. 4

D. π

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